AS OCR COMPUTING KEY TERMS

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K E D X G M U X K C D C D N I X U B O Q O
C E M A T C J K B V Y I A E W W O B U U B
E N T V P V K F L U Q R T T S N W U T S E
H D O T A R H M O S N C A W N E E B P D V
C A J B C I F G Y E G U D O O E C V U A Y
E K P C K N F U I R V I F R X R I J T K Q
P X C W E G T L C I F T O K C L V D D M N
Y B C I T T R E I N I S N D V D E X E H V
T G S W S O M T C T T W O E V S D J V H J
A T X X W P Q I K E R I I S A X E H I S G
T O A H I O W G R R K T T I Q B G Q C R Q
A R H B T L G G A F F C A G M D A T E S O
D Y I C C O D C K A A H C N C H R R D E W
T G F Q H G T J F C Q I I R P M O Q P A O
Y A W D I Y F Q B E J N F K X H T R P M S
Q G X I N F B P A S M G I Q X Y S M W L G
Y P F O G F N O Q S I C R B G X T T V E G
M C H A R A C T E R C H E C K O L M P O U
P V B H O D F C L T C Y V S D V R P F H J
F V C P N B B S L K V V Q M P E K I M M A
U V U Q F W Y N W T S D L D S H E V W C B

Clues

  • Checks for an expected character e.g. an @ sign in an email (9, 5)
  • Checks for correct data type, e.g. integer (4, 4, 5)
  • O = device, X = central device, - = connection medium (7, 6)
  • The devices are connected in a ring, where they must wait to be able to transmit until they are passed the ‘token’ by the previous device (4, 8)
  • The TX device closes down the network to other TX and sends the data in a direct path to the RX computer. It sends the data packets in the correct order (7, 9)
  • The TX device sends the data packets out in a random direction, with the instructions to go to the RX computer. The data then takes any paths to get to the RX device. They do not get received in the correct order, so must be re-ordered before assem (6, 9)
  • These are what the user will see on display when they are using the software (4, 10)
  • Verification of data is when a user is asked to enter information twice to ensure they have entered the correct data, e.g. passwords or emails. (12, 2, 4)
  • • A device which displays the result of computer commands in a form that the user can understand • Monitor, Printer (Touch screen is both an input and output) (6, 6)
  • • A device which stores user and data files, along with instructions for the computer. • HDD, RAM, ROM, Flash drive, CD ROM, CDRW (7, 6)

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